Hello,
 
I have a existing vocal track that plays 4 measures behind when I record a new vocal track.  
 
Existing vocal track plays 4 measure late only when recording/ Plays fine when just playing it back.
 
Playing existing vocal track plays normally on playback but when recording a new vocal track existing vocal track is 4 measures behind.  I have nothing setup in FX.
 
Thanks in advance.
 
Mattew

Whats your sound card?

 
John
 
Operating System
     MS Windows 7 32-bit SP1
Motherboard
     ASUSTeK Computer INC. P7H55-M LE (LGA1156) 39 °C
RAM
     4.00 GB Single-Channel DDR3 @ 666MHz (9-9-9-24)
Graphics
     VA1913 series (1366x768@60Hz)
     1024MB GeForce GTX 460 (PNY) 51 °C
Hard Drives
     977GB Seagate ST31000520AS ATA Device (SATA) 40 °C
     488GB Western Digital WDC WD5000AAKB-00H8A0 ATA Device (PATA) 43 °C
Optical Drives
     ATAPI iHAS124 B ATA Device
Audio
     Creative X-Fi Audio Processor (WDM)
 
Thanks
Matthew

I think that is your problem the X Fi. Its not meant for low latency multi track audio work. 
 
I don't think you can fix it with a change of the buffers either. 

X-Fi is not an ideal card, yes..
But 4 measures late!!! Can that be a soundcard issue?? Or is it a typo?
Also, is it exactly four measures or approximately like that? Is exactly the same delay every time? Is the delayed sound otherwise ok, keeps the tempo, no crackling etc? Is it exactly the same in all projects?
Do you have FX on the track? Metronome pre-count gone silent? That four measures really makes me wonder.

I'm not buying the sound card as the source of the problem either.  I have been able to use the built in sound card on several different low end laptop's and have consistently gotten under 20 ms latency.  Nothing to write home to mom about, but several orders of magnitude off from four measures.
 
Unfortunately, I don't have a good suggestion for what it might be.

That would have to be a very uptempo tune to be 4 measures late at 20 milliseconds latency!